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</a></div> <!----></nav>  <ul class="sidebar-links"><li><a href="/fe/" aria-current="page" class="sidebar-link">大前端学习路径 + B站资源整合</a></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>HTML</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>CSS</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>JavaScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>TypeScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ES6</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Vue</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Vue3</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>React</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Webpack</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/fe/webpack/" aria-current="page" class="sidebar-link">对webpack的理解？解决了什么问题？</a></li><li><a href="/fe/webpack/build_process.html" class="sidebar-link">面试官：说说webpack的构建流程?</a></li><li><a href="/fe/webpack/Loader.html" class="sidebar-link">Loader</a></li><li><a href="/fe/webpack/Plugin.html" class="sidebar-link">Plugin</a></li><li><a href="/fe/webpack/Loader_Plugin.html" class="sidebar-link">Loader和Plugin的区别？编写Loader，Plugin的思路？</a></li><li><a href="/fe/webpack/HMR.html" class="sidebar-link">面试官：说说webpack的热更新是如何做到的？原理是什么？</a></li><li><a href="/fe/webpack/proxy.html" class="sidebar-link">面试官：说说webpack proxy工作原理？为什么能解决跨域?</a></li><li><a href="/fe/webpack/performance.html" aria-current="page" class="active sidebar-link">Webpack 性能优化</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/fe/webpack/performance.html#一、背景" class="sidebar-link">一、背景</a></li><li class="sidebar-sub-header"><a href="/fe/webpack/performance.html#二、如何优化" class="sidebar-link">二、如何优化</a></li><li class="sidebar-sub-header"><a href="/fe/webpack/performance.html#三、总结" class="sidebar-link">三、总结</a></li></ul></li><li><a href="/fe/webpack/improve_build.html" class="sidebar-link">面试官：如何提高webpack的构建速度？</a></li><li><a href="/fe/webpack/Rollup_Parcel_snowpack_Vite.html" class="sidebar-link">面试官：与webpack类似的工具还有哪些？区别？</a></li><li><a href="/fe/webpack/babel.html" class="sidebar-link">Babel</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Node.js</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>性能优化</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>手写代码</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="webpack-性能优化"><a href="#webpack-性能优化" class="header-anchor">#</a> Webpack 性能优化</h1> <p><img src="/assets/img/webpack_update.9df7fe87.png" alt=""></p> <h2 id="一、背景"><a href="#一、背景" class="header-anchor">#</a> 一、背景</h2> <p>随着前端的项目逐渐扩大，必然会带来的一个问题就是性能</p> <p>尤其在大型复杂的项目中，前端业务可能因为一个小小的数据依赖，导致整个页面卡顿甚至奔溃</p> <p>一般项目在完成后，会通过<code>webpack</code>进行打包，利用<code>webpack</code>对前端项目性能优化是一个十分重要的环节</p> <h2 id="二、如何优化"><a href="#二、如何优化" class="header-anchor">#</a> 二、如何优化</h2> <p>通过<code>webpack</code>优化前端的手段有：</p> <ul><li>JS代码压缩</li> <li>CSS代码压缩</li> <li>Html文件代码压缩</li> <li>文件大小压缩</li> <li>图片压缩</li> <li>Tree Shaking</li> <li>代码分离</li> <li>内联 chunk</li></ul> <h3 id="js代码压缩"><a href="#js代码压缩" class="header-anchor">#</a> JS代码压缩</h3> <p><code>terser</code>是一个<code>JavaScript</code>的解释、绞肉机、压缩机的工具集，可以帮助我们压缩、丑化我们的代码，让<code>bundle</code>更小</p> <p>在<code>production</code>模式下，<code>webpack</code> 默认就是使用 <code>TerserPlugin</code> 来处理我们的代码的。如果想要自定义配置它，配置方法如下：</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token keyword">const</span> TerserPlugin <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'terser-webpack-plugin'</span><span class="token punctuation">)</span>
module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    optimization<span class="token operator">:</span> <span class="token punctuation">{</span>
        minimize<span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
        minimizer<span class="token operator">:</span> <span class="token punctuation">[</span>
            <span class="token keyword">new</span> <span class="token class-name">TerserPlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
                parallel<span class="token operator">:</span> <span class="token boolean">true</span> <span class="token comment">// 电脑cpu核数-1</span>
            <span class="token punctuation">}</span><span class="token punctuation">)</span>
        <span class="token punctuation">]</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre></div><p>属性介绍如下：</p> <ul><li>extractComments：默认值为true，表示会将注释抽取到一个单独的文件中，开发阶段，我们可设置为 false ，不保留注释</li> <li>parallel：使用多进程并发运行提高构建的速度，默认值是true，并发运行的默认数量： os.cpus().length - 1</li> <li>terserOptions：设置我们的terser相关的配置：</li> <li>compress：设置压缩相关的选项，mangle：设置丑化相关的选项，可以直接设置为true</li> <li>mangle：设置丑化相关的选项，可以直接设置为true</li> <li>toplevel：底层变量是否进行转换</li> <li>keep_classnames：保留类的名称</li> <li>keep_fnames：保留函数的名称</li></ul> <h3 id="css代码压缩"><a href="#css代码压缩" class="header-anchor">#</a> CSS代码压缩</h3> <p><code>CSS</code>压缩通常是去除无用的空格等，因为很难去修改选择器、属性的名称、值等</p> <p>CSS的压缩我们可以使用另外一个插件：<code>css-minimizer-webpack-plugin</code></p> <div class="language-cmd extra-class"><pre class="language-text"><code>npm install css-minimizer-webpack-plugin -D
</code></pre></div><p>配置方法如下：</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token keyword">const</span> CssMinimizerPlugin <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'css-minimizer-webpack-plugin'</span><span class="token punctuation">)</span>
module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token comment">// ...</span>
    optimization<span class="token operator">:</span> <span class="token punctuation">{</span>
        minimize<span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
        minimizer<span class="token operator">:</span> <span class="token punctuation">[</span>
            <span class="token keyword">new</span> <span class="token class-name">CssMinimizerPlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
                parallel<span class="token operator">:</span> <span class="token boolean">true</span>
            <span class="token punctuation">}</span><span class="token punctuation">)</span>
        <span class="token punctuation">]</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre></div><h3 id="html文件代码压缩"><a href="#html文件代码压缩" class="header-anchor">#</a> Html文件代码压缩</h3> <p>使用<code>HtmlWebpackPlugin</code>插件来生成<code>HTML</code>的模板时候，通过配置属性<code>minify</code>进行<code>html</code>优化</p> <div class="language-js extra-class"><pre class="language-js"><code>module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    plugin<span class="token operator">:</span><span class="token punctuation">[</span>
        <span class="token keyword">new</span> <span class="token class-name">HtmlwebpackPlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
            <span class="token operator">...</span>
            minify<span class="token operator">:</span><span class="token punctuation">{</span>
                minifyCSS<span class="token operator">:</span><span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token comment">// 是否压缩css</span>
                collapseWhitespace<span class="token operator">:</span><span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token comment">// 是否折叠空格</span>
                removeComments<span class="token operator">:</span><span class="token boolean">true</span> <span class="token comment">// 是否移除注释</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span><span class="token punctuation">)</span>
    <span class="token punctuation">]</span>
<span class="token punctuation">}</span>
</code></pre></div><p>设置了<code>minify</code>，实际会使用另一个插件<code>html-minifier-terser</code></p> <h3 id="文件大小压缩"><a href="#文件大小压缩" class="header-anchor">#</a> 文件大小压缩</h3> <p>对文件的大小进行压缩，减少<code>http</code>传输过程中宽带的损耗</p> <div class="language-js extra-class"><pre class="language-js"><code>npm install compression<span class="token operator">-</span>webpack<span class="token operator">-</span>plugin <span class="token operator">-</span><span class="token constant">D</span>
</code></pre></div><div class="language-js extra-class"><pre class="language-js"><code><span class="token keyword">new</span> <span class="token class-name">ComepressionPlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    test<span class="token operator">:</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">\.(css|js)$</span><span class="token regex-delimiter">/</span></span><span class="token punctuation">,</span>  <span class="token comment">// 哪些文件需要压缩</span>
    threshold<span class="token operator">:</span><span class="token number">500</span><span class="token punctuation">,</span> <span class="token comment">// 设置文件多大开始压缩</span>
    minRatio<span class="token operator">:</span><span class="token number">0.7</span><span class="token punctuation">,</span> <span class="token comment">// 至少压缩的比例</span>
    algorithm<span class="token operator">:</span><span class="token string">&quot;gzip&quot;</span><span class="token punctuation">,</span> <span class="token comment">// 采用的压缩算法</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre></div><h3 id="图片压缩"><a href="#图片压缩" class="header-anchor">#</a> 图片压缩</h3> <p>一般来说在打包之后，一些图片文件的大小是远远要比 <code>js</code> 或者 <code>css</code> 文件要来的大，所以图片压缩较为重要</p> <p>配置方法如下：</p> <div class="language-js extra-class"><pre class="language-js"><code>module<span class="token operator">:</span> <span class="token punctuation">{</span>
  rules<span class="token operator">:</span> <span class="token punctuation">[</span>
    <span class="token punctuation">{</span>
      test<span class="token operator">:</span> <span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">\.(png|jpg|gif)$</span><span class="token regex-delimiter">/</span></span><span class="token punctuation">,</span>
      use<span class="token operator">:</span> <span class="token punctuation">[</span>
        <span class="token punctuation">{</span>
          loader<span class="token operator">:</span> <span class="token string">'file-loader'</span><span class="token punctuation">,</span>
          options<span class="token operator">:</span> <span class="token punctuation">{</span>
            name<span class="token operator">:</span> <span class="token string">'[name]_[hash].[ext]'</span><span class="token punctuation">,</span>
            outputPath<span class="token operator">:</span> <span class="token string">'images/'</span><span class="token punctuation">,</span>
          <span class="token punctuation">}</span>
        <span class="token punctuation">}</span><span class="token punctuation">,</span>
        <span class="token punctuation">{</span>
          loader<span class="token operator">:</span> <span class="token string">'image-webpack-loader'</span><span class="token punctuation">,</span>
          options<span class="token operator">:</span> <span class="token punctuation">{</span>
            <span class="token comment">// 压缩 jpeg 的配置</span>
            mozjpeg<span class="token operator">:</span> <span class="token punctuation">{</span>
              progressive<span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
              quality<span class="token operator">:</span> <span class="token number">65</span>
            <span class="token punctuation">}</span><span class="token punctuation">,</span>
            <span class="token comment">// 使用 imagemin**-optipng 压缩 png，enable: false 为关闭</span>
            optipng<span class="token operator">:</span> <span class="token punctuation">{</span>
              enabled<span class="token operator">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span>
            <span class="token punctuation">}</span><span class="token punctuation">,</span>
            <span class="token comment">// 使用 imagemin-pngquant 压缩 png</span>
            pngquant<span class="token operator">:</span> <span class="token punctuation">{</span>
              quality<span class="token operator">:</span> <span class="token string">'65-90'</span><span class="token punctuation">,</span>
              speed<span class="token operator">:</span> <span class="token number">4</span>
            <span class="token punctuation">}</span><span class="token punctuation">,</span>
            <span class="token comment">// 压缩 gif 的配置</span>
            gifsicle<span class="token operator">:</span> <span class="token punctuation">{</span>
              interlaced<span class="token operator">:</span> <span class="token boolean">false</span><span class="token punctuation">,</span>
            <span class="token punctuation">}</span><span class="token punctuation">,</span>
            <span class="token comment">// 开启 webp，会把 jpg 和 png 图片压缩为 webp 格式</span>
            webp<span class="token operator">:</span> <span class="token punctuation">{</span>
              quality<span class="token operator">:</span> <span class="token number">75</span>
            <span class="token punctuation">}</span>
          <span class="token punctuation">}</span>
        <span class="token punctuation">}</span>
      <span class="token punctuation">]</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
  <span class="token punctuation">]</span>
<span class="token punctuation">}</span> 
</code></pre></div><h3 id="tree-shaking"><a href="#tree-shaking" class="header-anchor">#</a> Tree Shaking</h3> <p><code>Tree Shaking</code> 是一个术语，在计算机中表示消除死代码，依赖于<code>ES Module</code>的静态语法分析（不执行任何的代码，可以明确知道模块的依赖关系）</p> <p>在<code>webpack</code>实现<code>Tree Shaking</code>有两种不同的方案：</p> <ul><li>usedExports：通过标记某些函数是否被使用，之后通过Terser来进行优化的</li> <li>sideEffects：跳过整个模块/文件，直接查看该文件是否有副作用</li></ul> <p>两种不同的配置方案， 有不同的效果</p> <h4 id="_1-usedexports"><a href="#_1-usedexports" class="header-anchor">#</a> 1. usedExports</h4> <p>配置方法也很简单，只需要将<code>usedExports</code>设为<code>true</code></p> <div class="language-js extra-class"><pre class="language-js"><code>module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    optimization<span class="token operator">:</span><span class="token punctuation">{</span>
        usedExports
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre></div><p>使用之后，没被用上的代码在<code>webpack</code>打包中会加入<code>unused harmony export mul</code>注释，用来告知 <code>Terser</code> 在优化时，可以删除掉这段代码</p> <p>如下面<code>sum</code>函数没被用到，<code>webpack</code>打包会添加注释，<code>terser</code>在优化时，则将该函数去掉</p> <p><img src="https://static.vue-js.com/21b2e200-aee4-11eb-85f6-6fac77c0c9b3.png" alt=""></p> <h4 id="_2-sideeffects"><a href="#_2-sideeffects" class="header-anchor">#</a> 2. sideEffects</h4> <p><code>sideEffects</code>用于告知<code>webpack compiler</code>哪些模块时有副作用，配置方法是在<code>package.json</code>中设置<code>sideEffects</code>属性</p> <p>如果<code>sideEffects</code>设置为false，就是告知<code>webpack</code>可以安全的删除未用到的<code>exports</code></p> <p>如果有些文件需要保留，可以设置为数组的形式</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token string">&quot;sideEffecis&quot;</span><span class="token operator">:</span><span class="token punctuation">[</span>
    <span class="token string">&quot;./src/util/format.js&quot;</span><span class="token punctuation">,</span>
    <span class="token string">&quot;*.css&quot;</span> <span class="token comment">// 所有的css文件</span>
<span class="token punctuation">]</span>
</code></pre></div><p>上述都是关于<code>javascript</code>的<code>tree shaking</code>，<code>css</code>同样也能够实现<code>tree shaking</code></p> <h4 id="_3-css-tree-shaking"><a href="#_3-css-tree-shaking" class="header-anchor">#</a> 3. css tree shaking</h4> <p><code>css</code>进行<code>tree shaking</code>优化可以安装<code>PurgeCss</code>插件</p> <div class="language-cmd extra-class"><pre class="language-text"><code>npm install purgecss-plugin-webpack -D
</code></pre></div><div class="language-js extra-class"><pre class="language-js"><code><span class="token keyword">const</span> PurgeCssPlugin <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'purgecss-webpack-plugin'</span><span class="token punctuation">)</span>
module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    plugins<span class="token operator">:</span><span class="token punctuation">[</span>
        <span class="token keyword">new</span> <span class="token class-name">PurgeCssPlugin</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
            path<span class="token operator">:</span>glob<span class="token punctuation">.</span><span class="token function">sync</span><span class="token punctuation">(</span><span class="token template-string"><span class="token template-punctuation string">`</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span>path<span class="token punctuation">.</span><span class="token function">resolve</span><span class="token punctuation">(</span><span class="token string">'./src'</span><span class="token punctuation">)</span><span class="token interpolation-punctuation punctuation">}</span></span><span class="token string">/**/*</span><span class="token template-punctuation string">`</span></span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>nodir<span class="token operator">:</span><span class="token boolean">true</span><span class="token punctuation">}</span><span class="token comment">// src里面的所有文件</span>
            <span class="token function-variable function">satelist</span><span class="token operator">:</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
                <span class="token keyword">return</span> <span class="token punctuation">{</span>
                    standard<span class="token operator">:</span><span class="token punctuation">[</span><span class="token string">&quot;html&quot;</span><span class="token punctuation">]</span>
                <span class="token punctuation">}</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span><span class="token punctuation">)</span>
    <span class="token punctuation">]</span>
<span class="token punctuation">}</span>
</code></pre></div><ul><li>paths：表示要检测哪些目录下的内容需要被分析，配合使用glob</li> <li>默认情况下，Purgecss会将我们的html标签的样式移除掉，如果我们希望保留，可以添加一个safelist的属性</li></ul> <h3 id="代码分离"><a href="#代码分离" class="header-anchor">#</a> 代码分离</h3> <p>将代码分离到不同的<code>bundle</code>中，之后我们可以按需加载，或者并行加载这些文件</p> <p>默认情况下，所有的<code>JavaScript</code>代码（业务代码、第三方依赖、暂时没有用到的模块）在首页全部都加载，就会影响首页的加载速度</p> <p>代码分离可以分出来更小的<code>bundle</code>，以及控制资源加载优先级，提供代码的加载性能</p> <p>这里通过<code>splitChunksPlugin</code>来实现，该插件<code>webpack</code>已经默认安装和集成，只需要配置即可</p> <p>默认配置中，chunks仅仅针对于异步（async）请求，我们可以设置为initial或者all</p> <div class="language-js extra-class"><pre class="language-js"><code>module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    optimization<span class="token operator">:</span><span class="token punctuation">{</span>
        splitChunks<span class="token operator">:</span><span class="token punctuation">{</span>
            chunks<span class="token operator">:</span><span class="token string">&quot;all&quot;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre></div><p><code>splitChunks</code>主要属性有如下：</p> <ul><li>Chunks，对同步代码还是异步代码进行处理</li> <li>minSize： 拆分包的大小, 至少为minSize，如何包的大小不超过minSize，这个包不会拆分</li> <li>maxSize： 将大于maxSize的包，拆分为不小于minSize的包</li> <li>minChunks：被引入的次数，默认是1</li></ul> <h3 id="内联chunk"><a href="#内联chunk" class="header-anchor">#</a> 内联chunk</h3> <p>可以通过<code>InlineChunkHtmlPlugin</code>插件将一些<code>chunk</code>的模块内联到<code>html</code>，如<code>runtime</code>的代码（对模块进行解析、加载、模块信息相关的代码），代码量并不大，但是必须加载的</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token keyword">const</span> InlineChunkHtmlPlugin <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'react-dev-utils/InlineChunkHtmlPlugin'</span><span class="token punctuation">)</span>
<span class="token keyword">const</span> HtmlWebpackPlugin <span class="token operator">=</span> <span class="token function">require</span><span class="token punctuation">(</span><span class="token string">'html-webpack-plugin'</span><span class="token punctuation">)</span>
module<span class="token punctuation">.</span>exports <span class="token operator">=</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span>
    plugin<span class="token operator">:</span><span class="token punctuation">[</span>
        <span class="token keyword">new</span> <span class="token class-name">InlineChunkHtmlPlugin</span><span class="token punctuation">(</span>HtmlWebpackPlugin<span class="token punctuation">,</span><span class="token punctuation">[</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">runtime.+\.js</span><span class="token regex-delimiter">/</span></span><span class="token punctuation">]</span>
<span class="token punctuation">}</span>
</code></pre></div><h2 id="三、总结"><a href="#三、总结" class="header-anchor">#</a> 三、总结</h2> <p>关于<code>webpack</code>对前端性能的优化，可以通过文件体积大小入手，其次还可通过分包的形式、减少http请求次数等方式，实现对前端性能的优化</p> <h4 id="参考文献"><a href="#参考文献" class="header-anchor">#</a> 参考文献</h4> <ul><li>https://zhuanlan.zhihu.com/p/139498741</li> <li>https://vue3js.cn/interview/</li></ul></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">更新时间:</span> <span class="time">12/14/2021, 10:12:35 AM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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